The Wales international's hair style is believed to be in high demand in Spain following his £85m switch from Tottenham Hotspur to the Santiago Bernabeu.
"I look after Gareth Bale and I transformed his whole image, really," Johnson told the Daily Mail. "The whole of Spain's gone mad for it. I've been doing his haircuts for quite a while.
"Gareth Bale's haircuts are mine. As you can see, a haircut can transform you. As well as your appearance, it can also boost your confidence highly as well."